Feather-like structures in oxidized ultrananocrystalline diamond films; Applied Physics Letters; Vol. 128, iss. 12
| Parent link: | Applied Physics Letters.— .— New York: AIP Publishing Vol. 128, iss. 12.— 2026.— Article number 121908, 7 p. |
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| Other Authors: | , , , , |
| Summary: | Title screen Ultrananocrystalline diamond films are conventionally described as diamond nanograins embedded in a sp2-rich amorphous carbon matrix. It was recently reported that as-deposited ultrananocrystalline diamond films consisted of dendrite-/nanofeather-like diamond aggregates embedded in a sp2-rich phase across the thickness. Here, we reveal that controlled oxidation at 725 °C selectively removes the intergranular sp2 phase, exposing the hierarchical architecture throughout the film thickness. Cross-sectional scanning electron microscopy and depth-resolved Raman spectroscopy support that this morphology originates during growth via intense secondary nucleation and constrained lateral crystallite expansion. These results challenge the grain matrix model and provide a scalable route to anisotropic, high-surface-area diamond coatings Текстовый файл AM_Agreement |
| Language: | English |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://doi.org/10.1063/5.0315144 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=686414 |